Alert archive / Colorado / Flash Flood Warnings in 1996

Flash Flood Warning 3, NWS Denver/Boulder, CO

July 18, 1996Elbert County, Lincoln County, Colorado

NWS Denver/Boulder, CO issued this flash flood warning at Jul 18, 1996, 2:05 PM MDT for Elbert County, Lincoln County, Colorado. It was in force for 85 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 18, 1996, 2:05 PM MDT (20:05 UTC)
Expired
Jul 18, 1996, 3:30 PM MDT
In force
85 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Elbert County, CO, Lincoln County, CO

The radar

The Pueblo radar (KPUX), 81 km from the middle of the area, began a volume at 20:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.1 hours before the alert went out and 96 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 1996-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1996-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
34 J/kg
Mixed-layer CIN
-311 J/kg
Mixed-layer LCL
2062 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KDEN 182007 COR
FFWDEN
COC039-073-182130-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
205 PM MDT THU JUL 18 1996

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A FLASH FLOOD 
WARNING EFFECTIVE UNTIL 330 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

IN EAST CENTRAL COLORADO
     SOUTHEASTERN ELBERT AND CENTRAL LINCOLN

INCLUDING THE FOLLOWING LOCATIONS
     KUTCH...MATHESON AND SIMLA

AT 200 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
RAIN...WITH RADAR ESTIMATES OF 2 TO 3 INCHES OF RAIN FROM A 
STATIONARY THUNDERSTORM IN EXTREME SOUTHEAST ELBERT COUNTY. 

AT 155 PM MDT THE PUBLIC 10 MILES SOUTHWEST OF MATHESON REPORTED 
VERY HEAVY RAIN...AND SOME FLOODING OF FIELDS AND DRAINAGE DITCHES. 

BECAUSE OF THE STATIONARY NATURE OF THIS STORM...ANOTHER 1 TO 2 
INCHES OF RAIN MAY FALL FROM THIS STORM IN THE NEXT HOUR. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS
OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS,
ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
DENVER.

BAKER
LAT...LON 3921 10361 3890 10367 3888 10405 3919 10405

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 18, 10:22 AM MDT, 3 hours 43 minutes before
COZ001>008-181700-

SPECIAL FIRE DANGER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1015 AM MDT THU JUL 18 1996

...FIRE DANGER HIGH TO VERY HIGH ACROSS WESTERN COLORADO...

LAND MANAGERS IN COLORADO REPORT THE FIRE DANGER TO BE VERY HIGH ACROSS
NORTHWESTERN AND WEST CENTRAL COLORADO TODAY...INCLUDING AREAS AROUND
GRAND JUNCTION...CRAIG...DINOSAUR NATIONAL MONUMENT...AND BROWNS PARK
WILDLIFE REFUGE.  THE REST OF WESTERN COLORADO HAD HIGH FIRE DANGER.

NINE NEW FIRES WERE REPORTED IN COLORADO YESTERDAY.  WHILE SOME PLACES
HAVE RECEIVED SIGNIFICANT THUNDERSTORM RAINS...MOST AREAS STILL HAVE
EXTREMELY DRY GRASS AND BRUSH.  CONDITIONS REMAIN FAVORABLE FOR FIRES TO
START AND SPREAD QUICKLY.

FIRE BANS REMAIN IN EFFECT IN MANY AREAS...AND EXTREME CAUTION SHOULD BE
USED WHERE BURNING IS ALLOWED.  CHECK WITH LOCAL AUTHORITIES SUCH AS THE
FOREST SERVICE AND COUNTY SHERIFFS FOR DETAILS ON FIRE RESTRICTIONS.

HOT WEATHER IS EXPECTED TO CO&NTINUE THROUGHT THIS WEEKEND WITH LIMITED
THUNDERSTORM ACTIVITY...SO THE FIRE DANGER WILL REMAIN HIGH TO VERY HIGH
ACROSS MOST OF WESTERN COLORADO.  PLEASE REPORT ANY FIRES TO LOCAL LAW
ENFORCEMENT AGENCIES.

GIMMESTAD
Special weather statement, Jul 18, 11:36 AM MDT, 2 hours 29 minutes before
COZ030-032>050-190600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1130 AM MDT THU JUL 18 1996

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS     ARAPAHOE     BOULDER   CLEAR CREEK   DENVER       DOUGLAS
ELBERT    GILPIN       GRAND     JACKSON       JEFFERSON    LARIMER
LINCOLN   LOGAN        MORGAN    PARK          PHILLIPS     SEDGWICK
SUMMIT    WASHINGTON   WELD

SYNOPSIS...AN UPPER LEVEL WEATHER DISTURBANCE OVER SOUTHWEST COLORADO
IS FORECAST TO TRACK NORTHEAST ACROSS NORTHEAST COLORADO THIS AFTERNOON
AND EARLY THIS EVENING.  THIS SYSTEM WILL PROVIDE THE ENERGY AND MOISTURE
NEEDED TO PRODUCE SLOW MOVING THUNDERSTORMS CAPABLE OF LOCALLY HEAVY RAIN.
AREAS IN AND NEAR THE FRONT RANGE FOOTHILLS WILL BE PRONED TO FLASH
FLOODING IF HEAVY RAINFALL SHOULD DEVELOP.

RAINFALL AMOUNTS OF 1 TO 2 INCHES WILL BE POSSIBLE FROM SLOW MOVING STORMS.
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO MOVE NORTH-NORTHEAST ALONG THE
FRONT RANGE...WITH ADDITIONAL THUNDERSTORMS DEVELOPING ON THE NORTHEAST
PLAINS WITH AFTERNOON HEATING.

SEVERE WEATHER IS NOT ANTICIPATED TODAY.  ALTHOUGH THUNDERSTORMS LATE THIS
AFTERNOON AND EVENING MAY PRODUCE HAIL...BRIEF HEAVY RAINFALL AND STRONG
GUSTY WINDS.

STORM SPOTTERS ARE URGED TO REPORT SIGNIFICANT RAINFALL AMOUNTS AND ANY FLASH
FLOODING TO THE NATIONAL WEATHER SERVICE.  IN ADDITION...STORM SPOTTER
ACTIVATION MAY BE NEEDED AFTER 1 PM THIS AFTERNOON IN THE EVENT SEVERE WEATHER
SHOULD DEVELOP.

BAKER
Special weather statement, Jul 18, 1:43 PM MDT, 22 minutes before
COZ040-041-043>047-049-182030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
140 PM MDT THU JUL 18 1996

...SLOW MOVING THUNDERSTORMS DEVELOPING ALONG STATIONARY BOUNDARY...

AT 135 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF THUNDERSTORMS STRETCHING NORTHEAST ALONG A BOUNDARY FROM
SOUTHERN DOUGLAS AND ELBERT COUNTIES TO NORTHERN WASHINGTON COUNTY.
THE STRONGEST THUNDERSTORM ALONG THIS BOUNDARY WAS LOCATED IN
EXTREME SOUTHERN ELBERT COUNTY 6 MILES WEST OF KUTCH...OR ABOUT 25
MILES SOUTHWEST OF LIMON.

THUNDERSTORMS ALONG THIS BOUNDARY WERE MOVING NORTHEAST AT 5 TO 10
MILES PER HOUR.

RAINFALL AMOUNTS OF 1 TO 1 1/2 INCHES TOGETHER WITH SMALL HAIL ARE
POSSIBLE WITH THESE STORMS.

PEOPLE SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO
A PLACE OF SAFETY IF BAD WEATHER APPROACHES.

DANGEROUS LIGHTNING...SMALL HAIL...HEAVY RAIN...AND GUSTY WINDS WILL
OCCUR WITH THESE STORM.

BAKER

Nearby

Flash Flood Warnings in Colorado, 1996Every flash flood warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.